1) A fish with bullhorns. Usually summoned from the sky by a Bullfish Summoner, but can fall down from the sky on it's own. Can be found in waters too. Beware of this unfriendly fish. They smell bad, don't taste too well and can pierce you with ease. Don't drink from natural bodies of water.
2) A substitute for the other BS.
1) I hope bullfish fall from the sky and stab you through the head.
2) This is bullfish!